Electric fan with a sensor

Abstract

An electric fan with a sensor includes a sensor, a control chip, a light control unit, a light sensor and a power control unit. The sensor is connected with the control chip. The control chip is connected with the light control unit. The light control unit includes illuminating devices corresponding to the light sensor. The light sensor is connected with the power control unit. The power control unit includes a power supply. When the sensor is activated and outputs a signal to the control chip which then controls the light control unit to activate the illuminate devices to illuminate. The light sensor sends a signal to the power control unit to change the output of a power supply, so as to vary the speed of the fan.

1 . An electric fan with a sensor comprising a sensor, a control chip, a light control unit, a light sensor, and a power control unit, said sensor being connected with said control chip, said control chip being connected with said light control unit, said light control unit comprising illuminating devices, said illuminating devices corresponding to said light sensor, said light sensor being connected with said power control unit, said power control unit comprising a power supply, said sensor sending a signal to said control chip, said control chip then sending a signal to said light control unit to trigger said illuminating devices to illuminate, said light sensor sensing light sources from said illuminating devices of said light control unit and outputting a signal to said power control unit to change the output of said power supply to vary the speed of said fan.  
     
     
         2 . The electric fan with a sensor, as recited in  claim 1 , wherein said sensor is a temperature sensor.  
     
     
         3 . The electric fan with a sensor, as recited in  claim 1 , wherein said sensor is a smell sensor.